4040 Desalination 90% Nanofiltration Membrane

The nanofiltration membrane launched by our company includes nearly 10 varieties of three series with desalination rates of 40%, 70% and 90% respectively. Nanofiltration membrane is between reverse osmosis and ultrafiltration, the pore size is more than 1nm, generally 1~2nm, mainly removes solute particles of about one nanometer, and the relative molecular mass of the retention is 200~1000.The surface separation layer of the nanofiltration membrane is composed of polyelectrolyte, thus it has a certain rate of desalination for the inorganic salts. Generally, the removal rate of nanofiltration membrane for divalent ions is more than 90%, and the removal rate for monovalent ions is 10~80%.

Nanofiltration membrane is widely used in softening, removing natural organic matter, removing toxins in water, removing pesticides in water, removing trihalomethanes and haloacetic acid, removing volatile organic compounds, removing synthetic detergents, removing turbidity, removing chromaticity, and purifying macromolecular substances.

Deep purification of tap water to provide healthy, high-quality drinking water; pipeline water supply in residential areas; deep treatment of local high fluoride, high hardness, high metal ion content of groundwater to improve the local water use; nanofiltration membranes are used in seawater desalination, desalination of brackish water treatment; used in the purification and concentration of antibiotics; peptide purification and concentration; papermaking wastewater treatment; organic wastewater treatment; heavy metals Wastewater treatment; dye desalination; oil-water separation; water and industrial wastewater reuse.

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